Authors:
Nicolas Courilleau
1
;
Louis-Wilhelm Raban-Schürmann
1
;
Daniel Meneveaux
1
;
Kamel Abed-Meraim
2
and
Anas Sakout
2
Affiliations:
1
Université de Poitiers, XLIM Institute, CNRS UMR 7252, France
;
2
Université de La Rochelle, LaSIE, CNRS UMR 7356, France
Keyword(s):
Visualisation of Airflow, Rendering, Vortex Analysis, Flow Tracking.
Abstract:
Ventilation systems are spread in most buildings and housing. They provide control on air quality, while provisioning acceptable thermal conditions. However, slotted plates that direct air jets often produce acoustic disturbances with a self-sustained tone. Understanding and controlling the phenomenon requires complex experimentation with expensive setups. This article proposes an open source, web-based, interactive visualisation system dedicated to the observation and analysis of recorded high frequency captures (3kHz or more) of air streams, charged with thin oil particles. It relies on the acquired images and estimated vector fields, coming from industrial existing systems. Our goal is to visualise the main flow parameters, such as speed, gradients, directions, vortex tracking with path prediction, and vortex frequencies. The obtained results highlight interesting phenomena that illustrate sounds production. They can be employed by physicists to understand, explain, and control th
e generated acoustics.
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